| 摘要 |
The present invention relates to a system for use in a vehicle for determining in real time whether to permanently store vehicle data indicative of at least one vehicle-related feature during a vehicle journey. The system receives the vehicle data from at least one subsystem of the vehicle at a first location of the journey and stores it as a permanent data point. Vehicle data obtained at a second location of the journey is stored as a temporary data point, the second location being subsequent to the first. During the journey an equation of the straight line passing through the permanent data point and a data point obtained at a current location of the vehicle is determined and the shortest distance between the temporary data point and the determined straight line is calculated. The temporary data point is stored as a permanent data point only if the calculated shortest distance is greater than a predetermined threshold distance value, in a similar manner to a Douglas Peucker algorithm. |
